Low-cost superfine basalt fiber

Abstract

The invention relates to low-cost superfine basalt fiber, and belongs to the field of non-metallic material production. Fiber manufacturing process comprises the steps of raw material selection, cleaning, smashing, iron removal, high-temperature melting, crude fiber thread throwing, blowing into superfine fibers, superfine fiber infiltering surface treatment, collection, inspection, packaging andwarehousing; and manufacturing of the superfine basalt fibers of 2-5 microns is completed. Needled felt, spun yarns or chopped fibers can be directly produced; the method is characterized in that production cost is ultra low, the tensile strength, the elasticity modulus, the flexibility and the like of the basalt fiber are obviously superior to those of 13 microns fibers and are close to those of5 microns of continuous basalt fibers; the low-cost superfine basalt fiber is easily acceptable in price market, the superfine basalt fiber is obviously higher than common carbon fiber, aramid fiber and glass fiber in high and low temperature resistance, oxidation resistance and the like; the low-cost superfine basalt fiber is suitable for the fields of national defense and military industry, fireprevention and bullet prevention, construction and building materials, transportation, petrochemical engineering, culture and sports and the like, and is particularly suitable for being used as a reinforcing material for constructing large and extra-large underground military facilities, rail transit, subway water and electricity, underground pipe galleries and subsea tunnels.

Description

technical field [0001] A low-cost ultrafine basalt fiber belongs to the technical field of inorganic non-metallic new materials. Background technique [0002] Continuous basalt fiber is an inorganic non-metallic fiber material produced by high-temperature melting of high-quality basalt ore. It can be widely used in national defense and military industry, fire protection and bulletproof, petrochemical, transportation, civil engineering, electronic power, medical and health, and sports equipment. and other military and civilian areas. Every ton of high-quality basalt ore can produce 0.9 tons of continuous basalt fiber, and the resource utilization rate is significantly higher than other natural resources. Basalt ore has no harmful three wastes discharged during the fiber drawing process, and is an internationally recognized green and environmentally friendly new material in the 21st century. Compared with ordinary carbon fiber, aramid fiber and glass fiber, continuous basalt...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing technical problems of continuous basalt fiber production, the present invention provides a low-cost ultra-fine basalt fiber. The 2-5 micron ultra-fine basalt fiber produced by this new technology costs 3,000 yuan per ton, and the price per ton 50,000 yuan per ton, 20,000 to 30,000 yuan per ton for spinning ultra-fine basalt fiber into basalt fiber thread, and weaving cloth. The price is 50% of the 5 micron continuous basalt fiber, and the annual output of a single machine is 10,000 tons. Compared with the continuous basalt fiber, the production capacity is obviously higher, the employment is less, the labor cost is low, the production cost is low, the market price is low, the product use cost is low, and the promotion of basalt fiber can be expanded. The scope of application solves the problems existing in the existing continuous basalt fiber production technology, such as high production cost, high price, and difficulty in popularization and application.

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